2017 BMW 335 3.0L Diesel · SV 5475

The most recent MOT test for this 2017 BMW 335, conducted on 2026-02-10, resulted in a pass, with the sole advisory noting that the rear brake pads are wearing thin to just 1.1 millimetres of friction material remaining. This advisory, which has appeared consistently since 2023, indicates a gradual but persistent reduction in brake pad thickness, suggesting either a lack of timely replacement or a condition where pads are wearing at a rate faster than anticipated for normal service intervals. The absence of any other defects or failures in the preceding six MOT tests—spanning from 2020 to 2025—suggests that the vehicle’s overall roadworthiness has remained stable, with no critical issues emerging. However, the recurring advisory on the rear brakes is a notable concern, as it points to a potential need for proactive maintenance to prevent reduced braking performance, increased stopping distances, or even complete brake failure if the pads are not replaced soon. The fact that this issue has persisted over multiple tests implies that either the vehicle has been driven with minimal brake intervention, or there may be underlying factors such as misaligned brake components or uneven wear patterns that warrant further investigation. The recorded mileage of 69,747 miles for a vehicle aged nine years represents a moderate annual usage rate of approximately 7,750 miles per year, which is within the expected range for a BMW of this class. This level of mileage does not inherently indicate excessive wear beyond what is typical for the vehicle’s age, but it does suggest that the car has been subjected to regular use rather than prolonged periods of inactivity. The consistency of the mileage—without significant gaps or rapid accumulation—indicates a steady driving pattern, which generally translates to predictable wear on consumables like brake pads, tyres, and fluids. However, the lack of service records or ownership history means that the actual maintenance schedule cannot be verified, and the wear progression on critical components such as suspension bushes, coil springs, and drivetrain elements could be more pronounced than suggested by the MOT history alone. For example, suspension components may show signs of fatigue or excessive play, particularly if the vehicle has been driven on rough roads or over long distances without regular servicing. Given the recurring rear brake pad advisory, the prospective buyer should prioritise a thorough inspection of the braking system, beginning with a visual and tactile assessment of the rear brake pads, discs, and calipers. The pads should be checked for even wear and signs of glazing or contamination, which can exacerbate thinning. The discs should be inspected for scoring, warping, or corrosion, and the calipers should be examined for binding or excessive play, which could indicate hydraulic issues or seized components. During a test drive, listen for unusual noises such as grinding or squeaking from the rear brakes, which may signal impending failure. Additionally, observe the braking performance, particularly at higher speeds, to detect any reduction in stopping efficiency or pulsation that could indicate warped discs or uneven pad wear. If the pads are indeed very thin, replacement should be considered without delay, ideally before the remaining friction material reaches the minimum legal limit of 1.0 millimetres, as this reduces braking effectiveness and increases the risk of sudden failure. Beyond the brakes, the buyer should also conduct a comprehensive inspection of the vehicle’s suspension and undercarriage, as these areas often show wear patterns that become more pronounced with age and mileage. Focus on the rear suspension components, particularly the control arms, bushings, and coil springs, for signs of excessive play, cracks, or corrosion. The rear wheels should be checked for alignment issues, which can lead to uneven tyre wear and handling problems. The tyres themselves, given their age, should be inspected for sidewall cracking or perishing, which can compromise their structural integrity and reduce their ability to withstand road conditions. Additionally, the vehicle’s fluids—particularly the engine oil, brake fluid, and coolant—should be checked for their condition and age, as fluids degrade over time and can lead to engine damage or reduced braking performance if not replaced. For a nine-year-old vehicle with 69,747 miles, a full service check should be recommended, including the verification of service book stamps for oil changes, filter replacements, and other scheduled maintenance tasks. Finally, the battery should be tested for its charge capacity and terminal cleanliness, as a failing battery can lead to electrical issues and even immobiliser malfunctions, which are critical for the vehicle’s overall reliability.